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EP1281939B1 - Bague de fixation pour un compteur de liquide - Google Patents

Bague de fixation pour un compteur de liquide Download PDF

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Publication number
EP1281939B1
EP1281939B1 EP20020015749 EP02015749A EP1281939B1 EP 1281939 B1 EP1281939 B1 EP 1281939B1 EP 20020015749 EP20020015749 EP 20020015749 EP 02015749 A EP02015749 A EP 02015749A EP 1281939 B1 EP1281939 B1 EP 1281939B1
Authority
EP
European Patent Office
Prior art keywords
housing
fixing ring
hooks
measuring capsule
liquid meter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20020015749
Other languages
German (de)
English (en)
Other versions
EP1281939A1 (fr
Inventor
Lars Leblang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Techem Energy Services GmbH
Original Assignee
Techem Energy Services GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Techem Energy Services GmbH filed Critical Techem Energy Services GmbH
Publication of EP1281939A1 publication Critical patent/EP1281939A1/fr
Application granted granted Critical
Publication of EP1281939B1 publication Critical patent/EP1281939B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/14—Casings, e.g. of special material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/06—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission

Definitions

  • the invention relates to a liquid meter with a housing in measuring capsule type, which has a hydraulic device for converting a liquid flow into countable values and a counter and which can be attached to the housing via a fastening ring.
  • the measuring capsule In conventional liquid meters (water meters) according to the measuring capsule principle with axial inflow and outflow, the measuring capsule is mounted via a screw connection in the corresponding connection housing and fixed by the frictional connection of the threads of housing and measuring capsule.
  • an O-ring For the sealing in an unthreaded area an O-ring is provided, which applies when screwing the measuring capsule elastic to the surface to be sealed. There is a risk that the O-ring will be damaged during assembly and a leak occurs. If the seal is arranged outwardly above the measuring capsule thread, so that the thread is in the moist space, the measuring capsule thread can become dirty. In addition, the use of metallic materials in the fixing elements can not fall below a certain weight limit of the measuring capsule.
  • the measuring capsule is screwed into the connection housing by hand or with a suitable tool.
  • the measuring capsule To tighten the measuring capsule a tool is required in any case. Will, as usual, the measuring capsule still with provided a tamper protection, the assembly costs continue to increase. Since the measuring capsule are usually mounted without torque wrench, the mounting torque varies. Depending on the constructive design of the measuring capsule, this can affect the measuring behavior, so that the measuring error can exceed the permissible error limits.
  • the housing is provided with a cylindrical neck, in which a counter centered can be used.
  • a pot-shaped cover is provided, which overlaps one end of the counter.
  • the wall of the counter is used, on which rests the cover.
  • the cover locking cams are used, each with a latching nose, which engages behind a housing-side projection. If the required manufacturing tolerances are not met, it may happen that there is no defined coaxial arrangement of the components. It can also be done an unreliable attachment of the counter. For large dimensional tolerances even threatens a breach of coverage.
  • the DE 37 04 464 A1 describes a measuring unit for flow meters for liquids.
  • a measuring mechanism has a measuring mechanism housing, which can be screwed into the housing opening of a connecting piece with a substantially U-shaped cross section.
  • the measuring mechanism housing is detachably fastened to the connecting piece by means of a Renk or bayonet catch.
  • four radially projecting bayonet wings are formed on the outer circumference of the measuring mechanism housing, which on the inner circumference of the housing opening of the connecting piece is associated with this receiving annular groove having bayonet recesses for performing the bayonet wing.
  • At the housing end of the meter housing two in the housing opening of the connector bottom side concentrically arranged ring seals are provided.
  • a measuring capsule counter is known in which a measuring capsule for fixing in a housing part provides a head ring with an external thread which is screwed into an internal thread of the housing part, so that its lower end face is supported on the flange of the measuring capsule.
  • a Ausheberings on the measuring capsule of the head ring is pushed onto the Aushebering and displaced axially deforming elastically deformable portions radially inwardly until the lower edges of the sections are above the upper end face of the head ring and the head ring is not deducted from the measuring capsule can be.
  • the unit consisting of measuring capsule, ejector ring and head ring is inserted into an opening in the housing part and the head ring is screwed into the housing part.
  • the EP 0 730 138 A1 describes a water meter, consisting of a lower structure for carrying the water through an inlet opening and an outlet opening and an upper structure in which the actual measuring device is housed.
  • the upper structure has an insertion portion which is inserted into a connection opening portion of the lower structure and then rotated, whereby projections on the outer circumference of the insertion portion pass under projections on the inner circumference of the connection opening portion and the upper Couple the structure to the lower structure.
  • the object of the invention is therefore to avoid the disadvantages of the known water meter and to allow easy installation of the liquid meter without additional tools.
  • a circumferential groove for receiving a sealing element, in particular an O-ring, is provided on the inner cylindrical web.
  • a spring element for example a spring ring or a spring washer, is arranged between the hook and a bottom surface of the fastening ring.
  • the spring element compensates for possible axial manufacturing tolerances between the housing projection and the fastening ring, so that a defined axial mounting depth of the measuring capsule is given.
  • a slope is formed in a preferred embodiment of the invention on the side facing the housing of the hook, which cooperates with a corresponding slope on the projection of the housing.
  • the ring is rotated until the hooks are spread by the slope, so that the measuring capsule can be pulled axially from the housing.
  • the hooks must be destroyed during disassembly.
  • they have according to the invention a predetermined breaking point, which at the same time assumes the function of manipulation protection.
  • An additional safeguard such as the usual sealing ring or a wire seal, can be omitted.
  • a disassembly aid eg., Screwdriver
  • an adapter which has on the side facing the housing a thread for screwing into the housing and on its side facing the measuring capsule the sealing surface and centering surface, so that the mounting ring for attaching the measuring capsule can engage the adapter.
  • the adapter takes over the tasks of the housing described above and is to be regarded as part of the housing.
  • an inventive liquid meter 1, in particular an axially impinged multi-jet water meter in Meßkapselbauweise, a measuring capsule 2, which is attached to a housing 20.
  • a mounting ring 3 is provided on the measuring capsule 2, which carries both a hydraulic system 4, in which the flowing liquid flow is converted into countable pulses, as well as a counter 5 in which the pulses are counted and displayed on a display, not shown.
  • the mounting ring 3 is shown in the drawing as a closed cap, but this should only be a schematic representation. In practice, the mounting ring carries in this unspecified, customary manner, the hydraulic 4 and the counter fifth
  • the outer web 8 is formed by a plurality of web portions. Centering portions 9 of the outer web 8 which are distributed over the circumference serve for the defined concentric alignment of the measuring capsule 2 relative to the housing 20. Inwardly projecting hook projections 13 are formed on web portions of the outer web 8 which form free ends of hooks 10. Between the Zentri proceedingssabêten 9 of the outer web 8 and the hook 10, a groove 14 is provided in each case. Between the hook projections 13 and the bottom surface 6 of the Fixing ring 7 is a spring element 15, for example. A spring ring or a spring washer, used.
  • an inner, cylindrical sealing surface 22 is provided on the outwardly pointing housing neck 21.
  • a circumferential projection 23 having a centering surface 23 'is formed with a retaining edge 24. As it turned out Fig. 2 results in projections 23 are formed on the projection 23, whose width corresponds approximately to the width of the grooves 14 of the mounting ring 3.
  • the hooks 10 When mounting the measuring capsule 2 is axially inserted into the housing, the hooks 10 are bent elastically outwards until the hook projections 13 slide past the retaining edge 24 of the projection 23 of the housing 20 and elastically snap behind the projection 23.
  • the spring element 15 then compensates for possible axial manufacturing tolerances between the projection 23 and the hook 10 and brings the entire measuring capsule 2 in a defined axial position to the housing 20th
  • the O-ring 12 seals the measuring capsule 2 on the sealing surface 22 radially outward.
  • a second O-ring can be provided, so that the sealing function is ensured even if the sealing surface after a certain period of use of the measuring capsule 2 (usually a calibration period) is dirty and the first O-ring alone no longer fulfill the sealing function can.
  • bevels 35 and 36 are formed on the hook 10 and the projection 23 of the housing, which cause a disassembly of the measuring capsule 2 by rotating the mounting ring 3, a spreading of the hook 10, so that the measuring capsule 2 axially from the housing 20 can be deducted. This allows a non-destructive disassembly of the measuring capsule 2.
  • the housing 20a and the measuring capsule 2 are constructed substantially the same as in the first embodiment described above.
  • the outer web 8a is formed continuously and has at several, in particular two distributed over the circumference of the web points oblique grooves 16 which merge into a locking groove 17.
  • lugs 26 are formed. These form together with the grooves 16, 17 a bayonet closure, via which the measuring capsule 2 can be attached to the housing 20a.
  • the measuring capsule 2 is pushed during assembly with the grooves 16 axially on the lugs 26 of the housing 20a and then brought by turning clockwise into the locking position in which the lugs 26 engage in the locking grooves 17.
  • a securing element in turn serves the spring element 15.
  • For disassembly of the mounting ring 3a is released against the force of the spring element 15 and rotated counterclockwise out of the housing 20a.
  • the second embodiment corresponds to the first embodiment described above.
  • an adapter 30 is provided, can be mounted on the measuring capsules 2 to housings having a conventional thread for Meßkapselmontage.
  • An inventive adapter is in the FIGS. 14 to 17 shown.
  • FIGS. 14 to 17 shown adapter 30 shows a first embodiment according to Fig. 2 to 5 appropriate design. It is understood that the adapter 30 also according to the second embodiment Fig. 10 to 13 corresponding design and bayonet can have. The description given here refers to the adapter accordingly.
  • the fastening ring 3, 3a and the adapter 30 may be wholly or partly made of plastic, so that the weight of the measuring capsule 2 is reduced.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Claims (9)

  1. Compteur de liquide avec un boîtier (20, 20a) et une capsule de mesure (2) qui présente un système hydraulique (4) pour convertir un débit de liquide en valeurs dénombrables et un mécanisme de comptage (5) et qui peut être fixé au boîtier (20, 20a) par une bague de fixation (3, 3a)
    pour lequel, sont constituées sur le boîtier (20, 20a), une surface de joint (22) cylindrique intérieure sur une tubulure de boîtier (21) tournée vers l'arrière et une surface de centrage (23') cylindrique sur la face extérieure de la tubulure de boîtier (21),
    pour lequel la bague de fixation (3, 3a) est constituée comme une bague en forme de U, pour lequel la bague de fixation partant d'une surface de fond (6) présente une âme périphérique intérieure (7) qui coopère avec la surface de joint (22) pour étanchéifier la capsule de mesure (2) vis-à-vis du boîtier (20, 20a) et une âme périphérique extérieure (8, 8a) qui coopère avec la surface de centrage (23') pour centrer la capsule de mesure (2) vis-à-vis du boîtier (20, 20a) et
    pour lequel la bague de fixation (3, 3a) est maintenue sur le boîtier par un raccord à déclic ou à crans, plusieurs crampons (10), en particulier au moins trois, répartis sur le circonférence étant disposés sur l'âme extérieure (8) qui saisissent en arrière une partie en saillie (23) du boîtier (20, 20a) portant la surface de centrage (23'),
    caractérisé en ce qu'un élément élastique (15), par exemple une rondelle Grower ou une rondelle élastique pour compenser les tolérances de fabrication axiales entre la partie en saillie du boîtier (23) et la bague de fixation (3, 3a), est disposé entre le crampon (10) et la surface de fond (6) de la bague de fixation (3, 3a).
  2. Compteur de liquide selon la revendication 1 caractérisé en ce qu'une rainure périphérique (11) est constituée sur l'âme intérieure (7) pour recevoir un élément d'étanchéité (12).
  3. Compteur de liquide selon une quelconque des revendications précédentes caractérisé en ce que les crampons (10) sont constitués de façon élastique de sorte que les crampons (10) s'écartent de façon élastique, si la bague de fixation (3, 3a) est poussée sur la partie en saillie (23) et en ce que les crampons (10) rebondissent de façon élastique après passage de la partie en saillie (23) et verrouillent la bague de fixation (3, 3a) avec le boîtier (20, 20a).
  4. Compteur de liquide selon une quelconque des revendications précédentes caractérisé en ce qu'un chanfrein (35) est constitué sur le côté des crampons (10) tourné vers le boîtier (20), qui coopère avec un chanfrein (36) sur la partie en saillie (23).
  5. Compteur de liquide selon une quelconque des revendications précédentes caractérisé en ce que les crampons (10) présentent un point destiné à la rupture (33).
  6. Compteur de liquide selon une quelconque des revendications précédentes caractérisé en ce que les crampons (10) présentent une fente (34).
  7. Compteur de liquide selon une quelconque des revendications précédentes caractérisé en ce que dans la bague de fixation (3a) est constituée au moins une rainure (14) pour la mise en prise d'au moins un téton (25) sur le boîtier (20).
  8. Compteur de liquide selon une quelconque des revendications précédentes caractérisé en ce que dans l'âme extérieure (8a) de la bague de fixation (3a), plusieurs rainures (16) obliques réparties sur la périphérie sont constituées pour la mise en prise des tétons (26) prévus sur le boîtier (20a).
  9. Compteur de liquide selon une quelconque des revendications précédentes caractérisé en ce qu'entre le boîtier et la capsule de mesure (2) est prévu un adaptateur (30), lequel présente un filetage (31) sur le côté tourné vers le boîtier pour vissage dans le boîtier et présente sur son côté tourné vers la capsule de mesure (2) la surface de joint (22) et/ou la surface de centrage (23') de sorte que la bague de fixation (3, 3a) peut être appliquée à l'adaptateur (30) pour fixer la capsule de mesure (2).
EP20020015749 2001-08-01 2002-07-13 Bague de fixation pour un compteur de liquide Expired - Lifetime EP1281939B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20112776U DE20112776U1 (de) 2001-08-01 2001-08-01 Flüssigkeitszähler
DE20112776U 2001-08-01

Publications (2)

Publication Number Publication Date
EP1281939A1 EP1281939A1 (fr) 2003-02-05
EP1281939B1 true EP1281939B1 (fr) 2013-09-04

Family

ID=7960051

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020015749 Expired - Lifetime EP1281939B1 (fr) 2001-08-01 2002-07-13 Bague de fixation pour un compteur de liquide

Country Status (2)

Country Link
EP (1) EP1281939B1 (fr)
DE (1) DE20112776U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013103163A1 (de) * 2013-03-27 2014-10-16 Endress + Hauser Gmbh + Co. Kg Gehäusesystem für eine Umformerelektronik

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2365299A1 (fr) * 2010-02-23 2011-09-14 B Meters S.r.L. Compteur de fluide comprenant un module électronique amovible
CN102242854B (zh) * 2011-04-14 2013-01-02 东莞市亚美精密机械配件有限公司 仪表管道接口防护套
DE102012112737A1 (de) * 2012-12-20 2014-04-03 Conti Temic Microelectronic Gmbh Sensoranordnung und Verfahren zur Herstellung einer Sensoranordnung
PL233072B1 (pl) * 2017-10-03 2019-08-30 Apator Powogaz Spolka Akcyjna Nakładka do zdalnego odczytu wskazań wodomierza
DE102022131437A1 (de) 2022-11-28 2024-05-29 Landis + Gyr Gmbh Gehäuse zum Umschliessen eines Messteils eines Flüssigkeitsdurchflussmessers

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8408445U1 (de) 1984-03-20 1985-01-03 Plüss, Heinz, Schöndühl Messgeraet fuer getraenkeleitungen
DE3536376C1 (de) * 1985-10-11 1988-08-18 Bayerische Motoren Werke AG, 8000 München Loesbare Steckverbindung zwischen Bauteilen
DE3613711A1 (de) 1986-04-21 1987-10-22 Congermania Mess & Regel Fluessigkeitszaehler
DE3704464C2 (de) * 1987-02-13 1996-07-11 Lehmann W Minol Messtech Messeinheit für Flüssigkeitsdurchflusszähler
DE8907190U1 (de) 1989-06-12 1989-07-20 Hydrometer Gmbh, 8800 Ansbach Durchflussmesser
DE4440683C2 (de) 1994-11-15 1997-09-25 Wehrle E Gmbh Meßeinsatz für Flüssigkeitszähler
EP0730138A1 (fr) * 1995-02-15 1996-09-04 Kimmon Manufacturing Co., Ltd. Compteur d'eau
DE19711054C1 (de) * 1997-03-03 1998-06-10 Allmess Schlumberger Gmbh Meßkapselzähler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013103163A1 (de) * 2013-03-27 2014-10-16 Endress + Hauser Gmbh + Co. Kg Gehäusesystem für eine Umformerelektronik

Also Published As

Publication number Publication date
EP1281939A1 (fr) 2003-02-05
DE20112776U1 (de) 2001-11-15

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